Thrust-bearing.



W. H. RUSSELL. THRUST BEARING.

. ,y APPLICATION FILED DEC. 2G, 1908.

'lNvEN'rmlP-i y, l y WILLIAM HFLJSEELL Patented Apr. 23, 1912.

UNITED sra'riis rfa'rnnr orties.

WILLIAM H. RUSSELL, or NEWgAsILE. NEW BRUNSWICK, cANeLA.

THnIisT-BEAR'ING.

To allwhom it meg/concernf Beit known that I, WILLIAM H. RUSSELL, ofthe town of Newcastle, in the Province of New Brunswick and Dominion o-f Canada, have invented certain. new and useful Improvements, in Thrust-Bearings', of which the following isa full, clear, and exact description'.

My` invention relates to improvements in combined roller and thrus't bearings and the objectV is to provide a simple'and inexpensive bearing which will reduce all friction to a; minimum.

This invention is designedjas animprovef. ment on the Adevice patented' to lne in the United States #823,083, of June 12,1906.

' The particular object of this invention isV to provide a bearing in which the end thrust is taken up more effectively than heretofore and in which thenumber of separate parts used in my former invention .is greatly reduced. f

To accomplish thesebjects, I provide a series of cylindrical rollers held at theirends -between a pair of rings by means ofv balls. A second lpair of rings,`lar`ger than the firs and concentric-therewith, are provided. A series of frusto-conical rollers are secured between each pair of rings by means of balls at the ends thereof. A sleeve surrounds the cylindrical rollers and carrie's a pair of adjustable thrust collars enf gaging said frusto-conical rollers while a second pair of thrust collars 'is carried by the shaft or axle on which the bearing is mounted.

Inthe drawings which illustrate my invention:'-Figure' 1 is a section through the hub of a wheel showing the bearing in place. Figj2 is a cross-sectional view on the line 4-5 of Fig. 1.

In the above delined figures, 6 designates a shaft which, in the illustration, is a vehicle axle, while? I and 8 are the outer and inner halves respectively of the hubuof a wheel mounted'ther'eon. 'A series of` cylindrical rollers `Qare provided: surrounding the a'le 6 andare secured.. between outer and' inner rings 10' and 11, respectively, by means of ballstl2seated, one half in pockets in the rollers" ends and the other half in'correspendingV pockets in the rings, as is fully described in my former patent. Tlieouter ring 10 is L-"shaped in cross section and is provided with arine 13 threaded thereto.I

Specicaton of Letters Patent. Application led December 26, 1908. Serial 1024695255.

adjustable thrust collars 21.

,larger 'ends of all the rollers 15 Patented apr. 23, 1ere.

I In the outer circumference ofthe rings 11 I and 13, are series of Aball pockets `containing balls 14. Frusto-conical rollers 15 are pocketed at their smaller ends and seated on the balls 14.- A second pair of rings 16 are provided having pockets in which one half ofthe balls 17 are seated, the other half of said balls.being seated 1n pockets in the largerends of the rollers 15. The rings 16 are formed in `two or more parts for conwhich p arts are held together by. binder ringslSi Screws 19 are passed through-the rings 16 and 18 and screwed into the rings 11 vor -13 as the case may be. -Tliese screws hold the rings rigidlyi'n line and concentric with one another. A sleeve 20 vsurrounds the rollers 9 and is provided at `its ends with A thrust collar 22" is formed integral with the inner ends' ofthe bearing surface oftheaxle. A corresponding thrust collar 23 is formed on the nut 24C which screwsy onto the outer end of the axle.

When lthe bearing is placedv in the hub,` the outer end thrust 'bearing .{s adjusted'by means of the ring 13 which carries the bear.- ing andlwhich is screwedto the ring 10, so

.that `the uter and inner thrust bearings travel smoothly and' easily on the thrustv col# lars 21. When'the desired adjustment is obtained, the rings 10 and 13 are locked together by means of a screw 25 which passes through the ring 13 and may be screwed intov any one of a' plurality of holes'26 in the ring 10. The wheel is then placed on the axle and adjusted by means of thenut 24 so that the thrust bearings run easily be tween the thrust'collars 22 and 23. When the thrust comes onthe frustoJconical-rollers 15, the stress willtend to force them radially outward owingtotheir forr thus rinoin a Great burstin' stress/on the rin s o ze ze 7 binder rings 1S, screws 19 and through these screws, on the rings 11 and 13. To relieve this stress, vI bevel the edges of the and provide the thrustcollars 21,22, and -23 with integral projecting annular rings 27 which engage the bevel on the rollers, ends and take up the' outer thrust of the rollers, thus relieving the stress on the rings carrying the rollers. TWhen the bearing is applied to a vehicle axle, the hub of the wheel is provided with dust caps 28 and 29. the inner of lvenience in machining the ball pockets,

which, 29, carries'a dustbrush 30, adapted to rub yon the thrust collar Q2 and prevent the passage of dust and grit to the bearing.

-The operation of the device will be readily understood from the foregoing description and will require no further explanation.

The advantages of the device are obvious. There are no loose parts liable to become lost. The thrust, instead of being distributed among the points where the balls touch the rings as in my former patent, is distributed over the length of the rollers, thus giving a larger bearing surface and reducing the friction to a minimum. Having thus described my invention, what I claim is A Y l. A roller bearing comprising in combination with a shaft, a pair of rings, parallel rollers between said rings, balls pivoting said rollers between said rings, a second'A pair'of rings concentric with said first pair, radial rusto-conical rollers between said concentric rings, balls pivoting said frustoconical rollers between said concentric rings,

a sleeve surrounding said parallel rollers,

thrust collars on theends of said sleeve en.- gaging said frusto-conical rollers, and a second pair of thrust collars carried by said shaft and engaging said frusto-conical rollers, n

2. A roller bearing comprising in combination with a shaft,` a pair .of rings, vhaving pockets in the adjacent sides thereof,par allel rollers surrounding said shaft, having Apockets in the`ends thereof,.balls seated one half in the pockets in said rings and one half in the pockets in said rollers, an adjusting ring screwed Ato the second of said rings,

sectional outer rings concentric with said first'ring, andv adiusting ring, frusto-conical rollers, binder rings securing the sections of said sectional rings together, means for maintaining said rings rigid and concentric, locking means for said adJusting ring, a sleeve surrounding said .parallel rollers, ad-

vjustable'.thrust collars on the ends of said sleeve engaging said' Jrusto-conical rollers, a

thrust collar xed to said shaft and engaging said -rusto-conicaly rollers, and annular collars.

In witness .whereof I have hereunto setmy hand in the presence of two Witnesses. WILLIAM H. RUSSELL.

Witnesses: l A

C.' W. TAYLOR, V A E. R. McKnNzni'. 

